Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway
Patent
1987-08-18
1990-02-27
Corbin, David H.
Hydraulic and earth engineering
Drainage or irrigation
Porous or apertured pipe, flume, or tileway
138121, 405 49, 404 2, E02B 1100
Patent
active
049041134
ABSTRACT:
A hydraulic structure is provided in the form of a flexible, flat, corrugated plastic tube having a relatively oblongated cross-section, with apertures associated with the grooves of the corrugation. The tube is enclosed in a geotextile sheath. The two relatively flat sides or panels of the tube are separated from each other by a plurality of pairs of cuspations, which project inwardly from the panel surface. Cuspations from the opposing panels are secured to one another thereby providing increased structural integrity.
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Goddard James B.
Martin Larry L.
Zimmerman Leon H.
Advanced Drainage Systems, Inc.
Corbin David H.
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